Home / 35,983.81-49,644.57-20,868.13

Finding the Fourth Proportional to 35,983.81, 49,644.57 and 20,868.13

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Solution

The fourth proportional to 35,983.81, 49,644.57 and 20,868.13 is: 28,790.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,983.81 : 49,644.57 = 20,868.13 : x
  2. Step 2: Convert to fraction form
    35,983.81/49,644.57 = 20,868.13/x
  3. Step 3: Cross multiply
    35,983.81x = 49,644.57 × 20,868.13
  4. Step 4: Simplify right side
    35,983.81x = 1,035,989,340.55
  5. Step 5: Solve for x
    x = 1,035,989,340.55/35,983.81
  6. Step 6: Final answer
    x = 28,790.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.